baber/WOPTO huggingface dataset:
Patent GB-1127431-A (GB)
Title: Difluoramino compounds
IPC: C06B43/00
Filed: 1963-09-06
Abstract: 1,127,431. Difluoramino compounds. AEROJET GENERAL CORP. 6 Sept., 1963 [6 Sept., 1962], No. 35390/63. Heading C2C. The invention comprises gem-difluoramino compounds of the formula where A is an alkylene radical of at least two carbon atoms, R 1  and R 2  are hydrogen, alkyl, or haloalkyl, and m is 0 to 4; compounds in which R 1  and R 2  form part of a carbocyclic ring and m is 0 or 1 are also included. The compounds are prepared by reaction of an aldehyde or ketone ,with difluoramine in the presence of a strong dehydrating acid, for example boron trifluoride, sulphur trioxide, or concentrated or fuming sulphuric acid. Inert solvents such as water or lower alkanols may be present. A preferred reaction temperature is between - 10 and 35 C. The difluoramine may be prepared from unsymmetrical difluorourea as described in Specification 960,126. In Examples (I) acetone is refluxed with difluoramine and concentrated sulphuric acid to form 2,2-bis (difluoramino) propane; (II) 1,1-bis(difluoramino) cyclopentane is similarly prepared from cyclopentanone; (III) 3,3-bis(difluoramino)- pentane is similarly prepared from 3-pentanone; sulphur trioxide may be used in place of the sulphuric acid; (IV) 1,1-bis(difluoramino) cyclohexane is similarly prepared from cyclohexanone; (V) 1-chloro-2,2-bis(difluoramino) propane is formed from chloroacetone; (VI) 1,1,4,4- tetrakis(difluoramino) cyclohexane is prepared from 1,4-cyclohexanedione; (VII) concentrated sulphuric acid is added slowly to propionaldehyde in difluoramine to produce 1,1-bis(difluoramino) propane; boron trifluoride may be used in place of the sulphuric acid; (VIII) acetonyl acetone is reacted with difluoramine using first concentrated and then fuming sulphuric acid; the reaction mixture is poured over crushed ice and extracted with methylene chloride; a fraction separated by gas chromatography consists of 2,2,5,5-tetrakis(difluoramino) hexane; (IX) bis(difluoramino) methane is prepared from strioxane (which yields formaldehyde) and difluoramine in the presence of fuming sulphuric acid; (X) 3-methyl-2,2-bis(difluoramino) pentane is formed from 3-methyl-2-pentanone; (XI) 2,2,7,7-tetrakis (difluoramino) octane is prepared from 2,7-octanedione. Other suitable aldehyde and ketone reactants are referred to. The compounds are useful as explosives and as oxidizers and monomers in rocket propellants. They may also be used as plasticizers for nitrocellulose and nitropolymers.
Patent GB-1210908-A (GB)
Title: Improvements in and relating to film projectors
IPC: G03B21/43
Filed: 1969-07-15
Abstract: 1,210,908. Cine projection apparatus. RICOH K. K. July 15, 1969 [July 17, 1968], No.35503/69. Heading G2E. A cassette-loading cine projector comprises a projection push button 14, and a rewind push button 15, latching means 14a, 12b to retain either button to the depressed, operative, position, a stop button 16 operable to engage the latching means at 12c to release any latched button, a bell crank 6 operable by signal rod 8 in the cassette movable in response to the amount of film on the rewind reel to release any latched button when all film is transferred to the take-up reel. The disclosure varies only in the claims from that of Specification 1,210,907.
Patent GB-427345-A (GB)
Title: Improvements in or connected with mechanical stokers for steam generators and such like
IPC: F23L9/00
Filed: 1933-12-18
Abstract: 427,345. Supplying air to furnaces. HODGKINSON, A., Ford Lane Works, Pendleton, Manchester. Dec. 18, 1933, No. 35533. [Class 51 (i)] In furnaces provided with coking or sprinkling stokers, the main casting supporting the stoker is provided, as shown in Figs. 2, 3 and 5, with a segmental casting c bolted at c<1> to the main casting C and carrying one or more withdrawable structures for delivering air and steam or air only through a pipe h extending into the furnace. The withdrawable structure comprises a member d secured by bolts d<2> to the casting c and furnished with a steam supply pipe e and a steam nozzle f for inducing air through a passage c<2> in the casting c and delivering the mixture of steam and air through the tube h which is fitted with a choke g. In the modification shown in Fig. 5, the hollow segmental casting c<x> is fitted with a withdrawable structure d<x> carrying the tube h and air is supplied through a pipe i.
Patent GB-1517981-A (GB)
Title: Anaerobically hardenable glues and sealing agents
IPC: C09K3/10
Filed: 1975-08-29
Abstract: 1517981 Anaerobic sealing agents HENKEL KG AUF AKTIEN 29 Aug 1975 [2 Sept 1974] 35636/75 Heading C3P An anaerobically hardenable glue or sealing agent comprises a methacrylic acid ester, 0À1 to 20% by weight based on the total weight of glue or agent of an organic peroxide and a sulphonylhydrazone of formula in which Ar represents an optionally substituted aromatic group, R<1> and R<11> represent optionally substituted alkyl, cycloalkyl or aryl groups, R<1> may also represent H, and R<1> and R<11> may form a ring with the carbon atom to which they are attached. Many examples of methacrylic esters peroxides and sulphonyl hydrazones are provided. Examples describe the preparation of glues containing polyethyleneglycoldimethacrylate, hydroquinone, methylethylketonetosylhydrazone, N : N dimethyl-p-toluidine and cumene hydroperoxide.
Patent GB-1161556-A (GB)
Title: A Plant for Continuous Casting of Metal
Inventor: KHIMICH GEORGY LUKICH
IPC: B22D11/128
Filed: 1966-08-09
Abstract: 1,161,556. Continuous casting-machines; straightening. G. L. KHIMICH, V. M. NISKOVSKIKH, A. I. VARAXIN, E. J. GELFENBEIN and V. A. BYKOV. 9 Aug., 1966 [9 Aug., 1965], No. 35653/66. Headings B3E and B3F. A plant for continuously casting a metal strand 11 comprises a mould 5 having a curved axis, a mould oscillating mechanism 6 and an arrangement of walking bars 7 and rollers 9, 10 that gradually increase the radius of curvature of the strand 11 until it emerges straightened and horizontal to be fed into a cutter 22 for dividing the strand into ingots 23. Alternate rolls 14 of the lower set of rolls 10 are driven and spray cooling devices 20 are used to solidify the strand 11. The mould 5 is fed from a vessel 3 containing molten metal and supported on a carriage 2 movable on rails.
Patent GB-855035-A (GB)
Title: Improvements in or relating to water repellent synthetic resin compositions and to amethod of applying such compositions
IPC: C08L63/00
Filed: 1958-11-06
Abstract: A water-repellent coating composition comprises (i) 9-20% by weight of a wax with a melting point of at least about 128 DEG  F., (ii) a polymerizable glycidyl ether which is derived from a polyhydric phenol and has terminal epoxy groups, and (iii) a polymerizable condensation product derived from formaldehyde and at least one other compound.  Waxes (i) specified are microcrystalline paraffin waxes of C30H62-C35H72, preferably in admixture with carnauba wax.  The preferred epoxy resin (ii) is derived from epichlorhydin and bisphenol A.  Formaldehyde resins (iii) specified are based on phenol, urea or melamine.  Solvents specified are xylol, toluol, butanol, methyl isobutyl carbinol, butyl acetate, acetone, methyl ethyl ketone and methyl isobutyl ketone.  Examples are given.  Uses. Coating metals, especially aluminium ice trays, but also brass, bronze, stainless steel, steel and iron.  Specifications 796,587, 804,088 and 804,129 are referred to.ALSO:Metals, e.g. brass, bronze, stainless steel, steel and iron, and especially anodized aluminium ice trays, are coated by dipping, brushing or rolling with a water repellant coating composition comprising (i) an epoxy resin, (ii) a phenol-, urea- or melamineformaldehyde resin, and (iii) 9-20% by weight of a wax having a melting point of at least about 128 DEG F. The preferred wax is a mixture of a micro crystalline paraffin wax of C30H52-C35H72 with canauba wax.  Solvents specified are xylol, toluol, butanol, methyl isobutyl carbinol, butyl acetate, acetone, methyl ethyl ketone and methyl isobutyl ketone.  When aluminium ice trays are coated, the preferred method is to prepare a 6-7% by weight solids solution, heat it to 120-130 DEG F., dip the trays into the solution until they attain the temperature of the solution, drain the trays in air at about 100 DEG F. for five minutes, and finally bake them at 350-360 DEG F. for 15 minutes.  Examples of compositions are given.  Specifications 796,587, 804,088 and 804,129 are referred to.
Patent GB-854771-A (GB)
Title: Improvements in or relating to refrigerator evaporators and refrigerator evaporator arrangements
Inventor: SAUNDERS NORMAN FRANK TILBURY
IPC: F25D21/12
Filed: 1957-11-15
Abstract: 854,771. Refrigerating. GENERAL ELECTRIC CO. Ltd. Nov. 17, 1958 [Nov. 15, 1957], No. 35666/57. Class 29 A preferably roll-bonded refrigerator evaporator 1 is formed with an independent passage 2 for defrosting liquid circulating thermosyphonically either from a chamber 17 heated by an electric heater 18 or from a coil in heat exchange with the condenser of the system. Specification 759,804 is referred to.
Patent GB-636327-A (GB)
Title: Anti-static photographic film
IPC: G03C1/85
Filed: 1946-12-02
Abstract: 636,327. Photographic sensitive materials with antistatic layers. GENERAL ANILINE & FILM CORPORATION. Dec. 2, 1946, No. 35675. Convention date, Dec. 22, 1945. Drawings to Specification. [Class 98 (ii)] Photographic material comprises a support carrying a photographic emulsion layer and an antistatic layer comprising a biguanide salt of the formula wherein R is an alkyl, aralkyl, or acyl group, R 1  represents H or an alkyl group of not more than 4 carbon atoms, and X is an anion of an inorganic acid. Biguanide salts specified are octadecyl-, N-dodecyl-N<SP>1</SP>-methyl-, lauroyl, and N-lauroyl-N<SP>1</SP>-methyl-biguanide hydrochloride, dodecyl-biguanide sulphate, and benzyl- and octanoyl-biguanide hydrobromide. The biguanide salt may be incorporated in a substratum, overcoating, or emulsion layer or in an antihalation or other layer applied to the rear of the support, and may be applied to either side of the exposed and processed film. The support may be of cellulose acetateformate, propionate; butyrate, acetate-propionate, acetate-butyrate, or nitrate, polyvinyl chloride, vinyl chloride-vinyl acetate interpolymer, vinyl chloride-vinylidene chloride interpolymer, a polyamide, or a superpolymer. Specification 546,027 is referred to.
Patent GB-1351847-A (GB)
Title: Angular position determining system
IPC: G01S1/40
Filed: 1971-07-29
Abstract: 1351847 Radio navigation HAZELTINE CORP 29 July 1971 [28 Aug 1970] 35721/71 Heading H4D A receiver for determining the angular position of a target irradiated by a pulse train whose frequency distribution is representative of the angular position, comprises means for receiving the pulse train, means for detecting the phase distribution by forming a signal equivalent to that which would be received if a scanning beam scanned the receiver, and means for providing an indication of the angular position. Pulse generator 20, Fig. 1, provides a pulse of length t to aerials 13-16 through delay lines 17- 19 each of effective length t. The array thus transmits four contiguous pulses which are received by vehicles 10, 11 (e.g. aircraft, motor vehicles or ships). Aircraft 10, broadside-on to the array, is roughly equidistant from each aerial and thus the pulse train as received retains its initial phase relationship. However aircraft 11 is at differing path lengths, and the received pulses are delayed by different amounts. The phase modulation of the train produces a frequency shift of the carrier which denotes the direction from the array. Various forms of phase detection are described, providing an output signal having an envelope equivalent to that caused by a pencil-type beam sweeping across the receiver. (1) A matched filter bank containing parallel channels each recognizing a unique phase relationship i.e. frequency. (2) A Fourier transformer which analyses the incoming signal and provides a time-domain signal representing the frequency thereof. (3) A voltage-controlled oscillator (VCO) to demodulate the signal (Fig. 13). VCO 44 is initially varied by ramp generator 43. The received pulse train is mixed with the VCO output and if pulsed by filter 45, discriminator 46 produces a control signal which disables the ramp generator and controls the VCO 44. The VCO frequency is thus a measure of the array direction. The array may also be provided with a receiver which enables the target direction to be found and instead of reflection of the pulse train the system may utilize a transponder on the vehicle which retransmits the pulse train as received but modulates the carrier to provide additional information, thus range may also be determined.
Patent GB-1185344-A (GB)
Title: Preparation of 21-Desoxyprednisolone 17-Alkanoates
Inventor: OXLEY PETER
IPC: C07J7/00
Filed: 1967-08-04
Abstract: 1,185,344. 21-Desoxyprednisolone 17-alkanoates. BOOTS PURE DRUG CO. Ltd. 25 July, 1968 [4 Aug., 1967], No. 36001/67. Addition to 1,158,492. Heading C2U. Compounds of formula wherein R is ethyl, propyl or isopropyl, are prepared by alkaline hydrolysis of the corresponding 11-trihaloacetoxy compounds. The 17-propionate and 17-isobutyrate of 21- desoxyprednisolone 11-trifluoroacetate are prepared by acylation of 21-desoxyprednisolone 11-trifluoroacetate, which is itself obtained either from prednisolone 21-mesylate via prednisolone 21-mesylate 11-trifluoroacetate, or from 21-desoxyprednisolone by treatment with trifluoracetic anhydride, the 21-desoxyprednisolone 11,17-bis-trifluoroacetate produced as a byproduct being subsequently converted to the 11 -monotrifluoracetate by treatment with sodium azide in methanol. Reference has been directed by the Comptroller to Specification 1,097,164.
Patent GB-385746-A (GB)
Title: A universal grinding and backing off grinding apparatus for twist drills, screw taps, centre punches, lathe centres and the like
IPC: B24B3/24
Filed: 1931-12-30
Abstract: 385,746. Grinding. WEISSINGER, J., 33, Moltkestrasse, Esslingenon- Neckar, Germany. Dec. 30, 1931, No. 36005. [Class 60.] Twist drills, sharpening; cutting-edges, shaping. -Apparatus for grinding and backing off twist drills, taps, &c. and for grinding centre punches &c., and adapted to be fitted on an existing grinding-machine or on a lathe, comprises a hollow spindle 2, rotatable by a handle 13 and provided with means for gripping the work, mounted in bearings 3, 4 in a casing 1, the bearing 4 being pivoted to the casing at 7 and the bearing 3 being guided by a screw 6 moving in a slot 5 in the casing. The spindle is pressed by a spring 8 to press a selected cam 12, 12a, or 12b against the point 10 of a screw 11 having graduations 28 to allow setting of the spindle and depth of grinding by a grinding-wheel 17, the screw being carried by a slide piece 52 so adjustable as to bring the point 10 into register with the desired cam. In order to set the cutting-edges of the work in register with the cams a latch 19 is provided adapted to engage a hole 38 in the handle 13, thereby locking this, and a slidable abutment 25 is provided adapted to engage the cutting-edge of the work. The casing has a hollow bracket 29 whereby the apparatus is mounted on a bolt 30 clamped to a support of the grinding-machine, and may be moved to two positions, one for grinding and the other for removal &c. of the work, determined by the contact of faces 34, 33 respectively of the bracket with a pin 32 mounted in the bolt 30 ; a screw 36 serves to clamp the apparatus in the two positions. In order to give the requisite axial motion to a drill, and to prevent rotation in the wrong direction, two pivoted latches 39, 40 are mounted on the casing, their pivots having stops 43, 44 to engage respectively a cam 45 for right-handed drills, and a cam 46 for lefthanded drills, the spindle being pressed axially by a spring 47 ; the latches are locked by screws 49, 50 and may be set so as to allow of rotation of the spindle in both directions to allow of grinding centre punches &c. A plate 48 is provided to allow of setting the apparatus to any desired angle of grinding.
Patent GB-375716-A (GB)
Title: Device for moistening adhesive strips
IPC: B65H35/00
Filed: 1931-12-31
Abstract: 375,716. Holders for rolls of adhesive tape. NEUBRONNER, C., 15, Schlossstrasse, Cronberg-im-Taunus, Germany. Dec. 31, 1931, No. 36054. [Class 18.] In a device for delivering adhesive strip or tape from a roll and moistening it a tongue is arranged to be interposed between the strip and the moistening pad or brush as the former is drawn forward, so as to prevent moistening of the leading end of the strip and to be thereafter retracted so as to allow the strip to be moistened. The device consists of side members 1, between which the roll 3 of gummed paper strip or the like is supported on a baseplate 4, with a detachable liquid trough 5 in which is mounted a brush 6. A guide plate 7 covers the part of the trough behind the brush, and above the plate 7 is arranged a blade 8 having a serrated edge for severing the strip. Below the guide plate 7 is a feed roller 14 which carries a tongue 15 of impermeable material, e.g. thin steel. The free end of the tongue 15 lies normally under the plate 7 with its forward edge under the edge of the blade 8. When the end of the strip is fed forward by pressing it against the feed roller 14 with the finger and partially rotating the latter, the tongue is projected at the same time between the strip and the brush 6 as shown. The dry end of the strip can then be grasped, and the tongue is retracted by a spring 19 when the feed roller is released. The tongue may be narrower than the strip, so that the centre portion only of the latter is kept dry.
Patent GB-1006706-A (GB)
Title: Cosmetic preparations
IPC: A61K8/73
Filed: 1961-10-09
Abstract: Shaving creams, soaps and sticks, bubble baths and detergent compositions such as toilet soaps comprise, in addition to conventional ingredients, cellulose crystallite aggregates having an average level-off D.P. in the range 15 to 375 anhydroglucose units. A specific example relates to a shaving cream comprising sodium lauryl sulphate, oleic acid and triethanolamine in addition to the cellulose crystallite aggregate.ALSO:Cosmetic compositions of all types comprise cellulose crystallite aggregates, having an average level-off D.P. of from 15 to 375 and which preferably do not contain over 500 p.p.m. of ether-extractable components and which may have a particle size of from less than 1 micron to about 300 microns, and at least one active cosmetic ingredient in an amount sufficient to impart its cosmetic effect.  The compositions, which may be solid, liquid or in "gel" form, may be suitable for use inter alia as a cream, lotion, powder, deodorant, depilatory, sunscreen, lipstick, mascara, rouge, suntan, antiperspirant or dentifrice and may comprise the materials conventionally employed in their formulation in addition to the cellulose material.
Patent GB-334143-A (GB)
Title: Improvements in or connected with laminated springs for motor vehicles and such like
IPC: F16F1/24
Filed: 1929-11-27
Abstract: 334,143. Cary, Ltd., W. E., and Cary, C. E. Nov. 27, 1929. Laminated springs.-The leaves 2 of a spring for motor &c. vehicles are produced from separate lengths of steel which initially, in the rolling or manufacture, is formed with any number of grooves 3, further rolling or pressing thinning the extremities of the lengths and closing the ends of the grooves to form closed compartments for retaining grease so that on assembly a greaseloaded spring is obtained. To enable the grease to travel laterally the upper and lower faces of the leaves may be given a slight central concavity, as in Fig. 5, or occasional slight lateral depressions may be provided. Provision may be made for re-charging the grooves with grease as by devices 5, 6, Figs. 6, and holes 7 may interconnect the grooves. Projections on abutting faces of the leaves may fit in the grooves to cause a lateral locking effect.
Patent GB-412232-A (GB)
Title: Improvements in or connected with the construction of wings for aircraft
IPC: B64C3/00
Filed: 1932-12-22
Abstract: 412,232. Aircraft wings. VICKERS (AVIATION), Ltd., and WALLIS, B. N., Byfleet Road, Weybridge, Surrey. Dec. 22, 1932, Nos. 36307/32 and 32879/33. [Class 4.] An aircraft wing has upper and lower booms extending in the direction of the span at the deepest portion of the wing and two systems of intersecting bracing members arranged with their greater depth normal to the surface and with their neutral axes in geodetic lines, the members being rigidly secured together at their intersections and also rigidly secured to the booms. The upper and lower booms may be interconnected by Warren bracing or left free to enable an outer section of wing to telescope within the inner section. The two systems of bracing d, e are in short lengths of channel section material with the webs normal to the wing surface the ends of the webs being bent and secured to diametrically opposite points of short tubes f<2>, Fig. 8, and the flanges being secured to upper and lower plates f. Where the bracing intersects the booms still shorter members d<4>, d<5>, e<4>, e<5> are secured to pressed metal pieces g, Fig. 6, slid over the boom and having bent portions g<3>, g' secured thereto. Stiffening flutes g<5> in the sides of the members g transmit the thrust. Where the bracing meets the leading and trailing edges the ends of the members d, e are received in channel members h, h<1>, Fig. 5, connected by Warren bracing and by vertical plates h<2> to which brackets h<3> are riveted. A fairing, such as h<4>, completes the leading or trailing edge.
Patent GB-830010-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating one or more electric lamps
Inventor: TYRWHITT NORMAN HUGH
IPC: H05B41/18
Filed: 1956-11-27
Abstract: 830,010. Fusible cut-outs. GENERAL ELECTRIC CO. Ltd. Nov. 27, 1957 [Nov. 27, 1956], No. 36313/56. Class 38 (1). [Also in Group XXXV] A fusible element for disconnecting a main circuit in which the fusible element is in a branch circuit, comprises an L-shaped bracket 22, 23 carrying a terminal 14 mounted on an insulated base-plate 21. The bracket carries a spring member 24, 25 held on a contact 26 by a fusible element 27 connected to a terminal 16 by a second spring member 28. A predetermined current through terminals 14, 16 melts element 27, breaking the main circuit connected between terminals 14, 15, the latter forming part of contact 26.
Patent GB-826132-A (GB)
Title: Zone melting and refining of refractory materials
Inventor: DAVIS MICHAEL
IPC: H01J37/305
Filed: 1955-12-20
Abstract: Refractory materials are zone-refined by submitting them to electron bombardment on a limited zone such that it will be retained in position on the rod by natural forces.  The rod may be used as an anode in a cathode bombardment apparatus, or an electron gun may be used to promote secondary emission from the bombarded zone.  The rod 6 is held vertically and is encircled by a cathode 16, focusing plates 17 directing the beam.  The rod carrier is moved vertically by a worm <PICT:0826132/III/1> wheel 14 to cause the rod to travel through the melting area.  A single crystal can be obtained by seeding the starting end of the rod.  Refractory materials specified are tungsten, tantalum, rhenium, molybdenum, vanadium, platinum, nickel, silicon and ruthenium.  Reference has been directed by the Comptroller to Specification 769,673.